US5429209AExpiredUtility

Grease fitting adapter

Priority: Mar 1, 1994Filed: Mar 1, 1994Granted: Jul 4, 1995
Est. expiryMar 1, 2014(expired)· nominal 20-yr term from priority
F16N 7/00F16N 21/02
13
PatentIndex Score
5
Cited by
10
References
5
Claims

Abstract

A grease fitting adapter for lubricating a gearbox having a grease fitting aperture in a gas operated lawn trimmer is provided, which consists of a grease source. A structure is for conveying grease from the grease source through the grease fitting aperture in the gearbox, after a grease fitting is removed from the grease fitting aperture.

Claims

exact text as granted — not AI-modified
What is claimed is new and desired to be protected by Letters Patent is set forth in the appended claims: 
     
       1. A grease fitting adapter for lubricating a gearbox having a grease fitting aperture for use in and in combination with a gas operated lawn trimmer which comprises: a) a grease source comprising a grease gun and an elongated pipe connected at a first end to said grease gun; and   b) means for conveying grease from said grease source through the grease fitting aperture in the gearbox, after a grease fitting is removed from the grease fitting aperture comprising a one piece main body generally cylindrical in shape having a longitudinal bore therethrough, means at a first end of said main body for connecting with a second end of said elongated pipe, means at a second end of said main body for connecting with the grease fitting aperture in the gear box, and means on said main body between the first end and the second end for manually twisting said second connecting means into the grease fitting aperture in the gearbox, said manually twisting means including a pair of wing extensions extending from opposite locations on said main body, so that a person can grip said wing extensions to turn said main body;   c) said elongated pipe having external threads on the second end thereof, and said main body having internal threads on the bore at the first end, so that said external threads on the second end of said elongated pipe can screw into said internal threads on the bore at the first end; and   d) said main body having external self tapping threads on the second end thereof, so that said external self tapping threads on the second end can screw into the grease fitting aperture in the gear box.   
     
     
       2. A grease fitting adapter as recited in claim 1, wherein said grease conveying means is fabricated out of a ferrous metal. 
     
     
       3. A grease fitting adapter as recited in claim 2, wherein said ferrous metal is selected from a group consisting of iron, steel and stainless steel. 
     
     
       4. A grease fitting adapter as recited in claim 1, wherein said grease conveying means is fabricated from a non-ferrous metal. 
     
     
       5. A grease fitting adapter as recited in claim 4, wherein said non-ferrous metal is selected from a group consisting of aluminum, copper and brass.

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